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三異丙氧基鏑改性P（MMA-co-St）共聚物的研究
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O614.342

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福建省自然科學(xué)基金重點(diǎn)資助項(xiàng)目(E0120002)


Study on Modified Copolymer of P (MMA-co-St) with Dysprosium Tri-isopropoxide
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    摘要:

    一定比例的三異丙氧基鏑[Dy(OPr^i)3】與甲基丙烯酸甲酯(MMA)／苯乙烯(St)的混合單體(單體摩爾比為1：1混合后能迅速形成1種凝膠體，此凝膠體經(jīng)原位聚合后即獲得含鏑的P(MMA-co-St)共聚物。研究Dy(OPr^i)3對(duì)P(MMA-co-St)共聚物性能的影響表明，共聚物中MMA與St以交替共聚為主組成，隨Dy含量增加，共聚物的結(jié)構(gòu)逐漸由線型向交聯(lián)網(wǎng)狀結(jié)構(gòu)轉(zhuǎn)變，并使共聚物的耐熱性、耐溶劑性、貯能模量及熒光強(qiáng)度均得到提高；所獲得的共聚物是一類稀土含量高、透明性良好的高分子材料。

    Abstract:

    The P (MMA-co-St) copolymer containing dysprosium was prepared by the in-situ polymerization of a gel, which was obtained by doping directly dysprosium tri-isopropoxide in the monomer mixtures of methyl methacrylate and styrene (monomer mole ratio was 1:1). The effect of dysprosium tri-isopropoxide on the properties of P (MMA-co-St) copolymer was also studied. It was shown that the linear structure of P (MMA-co-St) containing dysprosium changed into a crosslinked network with increasing dysprosium content, resulting in improvement of properties, such as resistance to heat and solvent, storage modulus and fluorescence strength. Moreover the copolymer is a material with high uniformly distributed rare earth content and improved transparency.

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林美娟 王文 章文貢.三異丙氧基鏑改性P（MMA-co-St）共聚物的研究[J].稀有金屬材料與工程,2004,33(4):380~384.[Lin Meijuan, Wang Wen, Zhang Wengong. Study on Modified Copolymer of P (MMA-co-St) with Dysprosium Tri-isopropoxide[J]. Rare Metal Materials and Engineering,2004,33(4):380~384.]
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  • 最后修改日期:2002-09-23
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